Threat Intelligence & CTI

Threat Intelligence & CTI is a skill for Claude Code, Codex from Masriyan/Claude-Code-CyberSecurity-Skill. It costs 57 tokens per session (3,218 once invoked), scanned A, original, MIT.

A cybersecurity procedure for turning raw threat information into structured intelligence. It covers indicators such as suspicious domains or file hashes, source confidence, attacker tracking, and formats such as STIX and MISP.

In plain words
What is it for?
Use it to extract and normalize indicators, assess sources, track threat actors and campaigns, and produce machine-readable or human-readable reports.
Why use it?
It helps separate unverified observations from assessed information that defenders and decision-makers can use.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to extract and normalize indicators, assess sources, track threat actors and campaigns, and produce machine-readable or human-readable reports.

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Install with agentmods
npx agentmods add skills/masriyan/claude-code-cybersecurity-skill/21-threat-intelligence
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add Masriyan/Claude-Code-CyberSecurity-Skill --skill 21-threat-intelligence
Clone the repo
git clone --depth 1 https://github.com/Masriyan/Claude-Code-CyberSecurity-Skill

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for Threat Intelligence & CTI

README.md
[![agentmods](https://agentmods.dev/badge/skills/masriyan/claude-code-cybersecurity-skill/21-threat-intelligence/github.svg)](https://agentmods.dev/skills/masriyan/claude-code-cybersecurity-skill/21-threat-intelligence)
Your own site
<a href="https://agentmods.dev/skills/masriyan/claude-code-cybersecurity-skill/21-threat-intelligence"><img src="https://agentmods.dev/badge/skills/masriyan/claude-code-cybersecurity-skill/21-threat-intelligence/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for Threat Intelligence & CTI

Your own site · 80×15
<a href="https://agentmods.dev/skills/masriyan/claude-code-cybersecurity-skill/21-threat-intelligence"><img src="https://agentmods.dev/badge/skills/masriyan/claude-code-cybersecurity-skill/21-threat-intelligence.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 57 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,218 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00057 $0.03218
Opus 5 $0.00028 $0.01609
Sonnet 5 $0.00011 $0.00644
Haiku 4.5 $0.00006 $0.00322

Measured 2d ago against content hash 47b5edd13b3f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

Threat Intelligence & CTI scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/cti_processor.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/21-threat-intelligence/SKILL.md · 205 lines

How it starts

The opening of the file, as written. The whole thing — 205 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Threat Intelligence & CTI

Purpose

Enable Claude to turn raw observations into finished intelligence — assessments a defender can act on and decision-makers can trust. This skill governs the whole intelligence cycle: framing requirements, collecting and normalizing indicators, applying structured analytic models, scoring sources and confidence, tracking actors and campaigns, and disseminating in machine-readable (STIX/MISP) and human-readable (report) form.

This is distinct from Skill 06 (Threat Hunting): hunting uses intelligence to search an environment for adversary activity; this skill produces and manages the intelligence itself. It is also distinct from Skill 05 (Malware Analysis), which produces the technical facts this skill contextualizes and disseminates.


Activation Triggers

This skill activates when the user asks about:

  • Extracting, defanging/refanging, normalizing, or deduplicating IOCs from reports, emails, or feeds
  • Producing a STIX 2.1 bundle, a MISP event, or a TAXII-servable indicator set
  • Scoring the reliability of a source or the confidence of an assessment (Admiralty/NATO code, words of estimative probability)
  • Applying the Diamond Model, Cyber Kill Chain, or MITRE ATT&CK to structure an intrusion
  • Tracking or clustering a threat actor / campaign, or reasoning about attribution
  • Writing a tactical, operational, or strategic threat intelligence report or an intelligence estimate
  • Setting Priority Intelligence Requirements (PIRs) or building a collection plan
  • TLP marking, intelligence dissemination, or feed aging/decay and false-positive suppression
  • Enriching an indicator (WHOIS/passive DNS/reputation) or pivoting from one indicator to related infrastructure

Prerequisites

python3 --version          # 3.10+; standard library only for the core script
pip install requests       # optional — only for --enrich (live reputation/WHOIS lookups)

Optional enhanced tooling:

  • misp / PyMISP — event creation and sharing on a MISP instance
  • stix2 / taxii2-client (OASIS) — richer STIX object modeling and TAXII push/pull
  • opencti — CTI platform for actor/campaign knowledge-graph management
  • A passive-DNS / reputation provider (VirusTotal, Shodan, GreyNoise, urlscan) for enrichment

Read the full file on GitHub · 205 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 205 lines · 57 tokens per session scan A 47b5edd13b3f

Subscribe to this mod's changes

Threat Intelligence & CTI is a skill published in the GitHub repository Masriyan/Claude-Code-CyberSecurity-Skill (409 stars, last pushed 3d ago), licensed MIT. It adds 57 tokens to every session and 3,218 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-08.

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